EP 0907249 A3 20000816 - Piezoelectric component
Title (en)
Piezoelectric component
Title (de)
Piezoelektrisches Bauelement
Title (fr)
Composant piézoélectrique
Publication
Application
Priority
- JP 28618097 A 19971001
- JP 28767197 A 19971003
- JP 24720398 A 19980901
Abstract (en)
[origin: EP0907249A2] A piezoelectric component 10 includes a substrate 12 on which a piezoelectric resonator 20 is mounted with supporting members 38 and 40 interposed therebetween. The substrate 12 is capped with a cap 46 so as to cover the piezoelectric resonator 20. A rubber-like elastic material 50 such as a silicone resin is injected through a hole 48 of the cap 48 to cover the periphery of the piezoelectric resonator 20. Preferably, the Young's modulus of the rubber-like elastic material 50 is not larger than 12 kgf/cm<2>. The cap of the piezoelectric component cannot come off easily. Further, The piezoelectric component is capable of accurate Qm adjustment and which can be reduced in size.
IPC 1-7
IPC 8 full level
H03H 9/10 (2006.01); H03H 9/58 (2006.01); H03H 9/60 (2006.01)
CPC (source: EP KR US)
H03H 9/1014 (2013.01 - EP KR US); H03H 9/178 (2013.01 - EP US); H03H 9/605 (2013.01 - EP US); H03H 9/1021 (2013.01 - KR); H03H 9/15 (2013.01 - KR); H10N 30/88 (2023.02 - KR)
Citation (search report)
- [XY] US 2454244 A 19481116 - WINTERMUTE CARLTON H
- [A] US 2824219 A 19580218 - FISHER GEORGE F, et al
- [PY] EP 0809356 A2 19971126 - MURATA MANUFACTURING CO [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0907249 A2 19990407; EP 0907249 A3 20000816; CN 1147995 C 20040428; CN 1213891 A 19990414; KR 100292766 B1 20010615; KR 19990036703 A 19990525; NO 313350 B1 20020916; NO 984575 D0 19980930; NO 984575 L 19990406; US 6114800 A 20000905
DOCDB simple family (application)
EP 98118482 A 19980930; CN 98119444 A 19980930; KR 19980040492 A 19980929; NO 984575 A 19980930; US 16093198 A 19980925